Polymarket Intelligence API
UMA resolution dispute and flip base rates by category and criterion clarity; descriptive historical compatibility, not a market-specific forecast. BEFORE YOU PAY: free substitute https://dash.polym.uk/uma-base-rates.json and https://dash.polym.uk/uma-flip-rate.json. THIS ADDS: The two artifacts joined into one response, dispute axis and flip axis already aligned by category. The underlying numbers are the same ones in those two free files.
Offering
- Provider
- api.polym.uk
- Method
- GET
- Offering type
- Api Endpoint
- Transport type
- http
- Category
- Prediction Markets
- Delivery
- Not provided
- Pricing model
- Not provided
- x402 version
- 2
Endpoint context
- URL
https://api.polym.uk/resolution-risk- MIME type
- application/json
- First seen
- 2026-10-16T01:50:10.647Z
- Last seen
- Tags
- polymarket, prediction-markets, uma-resolution, base-rates, Base
Payment pricing
x402 payment terms are the authoritative price for calling this endpoint.
- Payment option 1
- 0.05 USDC
Atomic price: 50000 · Network: eip155:8453 · Asset: USDC · Scheme: exact
Raw x402 terms
[
{
"scheme": "exact",
"network": "eip155:8453",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"amount": "50000",
"payTo": "0x7b13107779CfDA1bEba3289d0Fbe27310436f3E3"
}
]Observed health
- Status
- Healthy
- Latest latency
- 1266 ms
- Average latency
- 752 ms
- HTTP status
- 402
- Last checked
- Reachability
- 100% over 14 checks
Latency is measured to the first response headers. A reachable result does not verify response accuracy or merchant identity.
Input schema
{
"type": "object",
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"type": "string",
"enum": [
"GET"
]
},
"queryParams": {
"type": "object",
"properties": {},
"additionalProperties": false
}
},
"required": [
"type",
"method"
],
"additionalProperties": false
}Output schema
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"additionalProperties": false,
"properties": {},
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"additionalProperties": false,
"properties": {
"asOf": {
"format": "date-time",
"type": "string"
},
"byCategory": {
"items": {
"additionalProperties": false,
"properties": {
"category": {
"type": "string"
},
"disputeInsufficientSample": {
"type": "boolean"
},
"disputeRatePctChronological": {
"maximum": 100,
"minimum": 0,
"type": [
"number",
"null"
]
},
"disputeRatePctHighVolume": {
"maximum": 100,
"minimum": 0,
"type": "number"
},
"elevated": {
"type": "boolean"
},
"flipInsufficientSample": {
"type": "boolean"
},
"flipRatePct": {
"maximum": 100,
"minimum": 0,
"type": [
"number",
"null"
]
},
"lockupHoursIfDisputed": {
"minimum": 0,
"type": [
"number",
"null"
]
},
"lockupHoursPerMarket": {
"minimum": 0,
"type": [
"number",
"null"
]
}
},
"required": [
"category",
"disputeRatePctHighVolume",
"disputeRatePctChronological",
"disputeInsufficientSample",
"elevated",
"lockupHoursPerMarket",
"lockupHoursIfDisputed",
"flipRatePct",
"flipInsufficientSample"
],
"type": "object"
},
"type": "array"
},
"caveats": {
"items": {
"type": "string"
},
"type": "array"
},
"clarity": {
"additionalProperties": false,
"properties": {
"checkableTitle": {
"additionalProperties": true,
"properties": {
"disputeRatePct": {
"maximum": 100,
"minimum": 0,
"type": "number"
},
"disputedMarkets": {
"description": "Disputed markets in this title-clarity cell. Numerator of disputeRatePct.",
"minimum": 0,
"type": "integer"
},
"marketsScanned": {
"minimum": 0,
"type": "integer"
}
},
"required": [
"marketsScanned",
"disputeRatePct"
],
"type": "object"
},
"uncheckableTitle": {
"additionalProperties": true,
"properties": {
"disputeRatePct": {
"maximum": 100,
"minimum": 0,
"type": "number"
},
"disputedMarkets": {
"description": "Disputed markets in this title-clarity cell. Numerator of disputeRatePct.",
"minimum": 0,
"type": "integer"
},
"marketsScanned": {
"minimum": 0,
"type": "integer"
}
},
"required": [
"marketsScanned",
"disputeRatePct"
],
"type": "object"
}
},
"required": [
"checkableTitle",
"uncheckableTitle"
],
"type": [
"object",
"null"
]
},
"dataDegraded": {
"type": "boolean"
},
"elevatedRiskCategories": {
"items": {
"type": "string"
},
"type": "array"
},
"flipAsOf": {
"format": "date-time",
"type": [
"string",
"null"
]
},
"flipOverall": {
"additionalProperties": true,
"properties": {
"disputedResolved": {
"minimum": 0,
"type": "integer"
},
"flipRatePct": {
"maximum": 100,
"minimum": 0,
"type": "number"
},
"flipped": {
"description": "Disputes whose outcome reversed. Numerator of flipRatePct.",
"minimum": 0,
"type": "integer"
},
"splitCount": {
"description": "Disputes resolved to a split outcome rather than to one side.",
"minimum": 0,
"type": "integer"
}
},
"required": [
"flipRatePct",
"disputedResolved"
],
"type": [
"object",
"null"
]
},
"howToRead": {
"type": "string"
}
},
"required": [
"asOf",
"flipAsOf",
"dataDegraded",
"elevatedRiskCategories",
"byCategory",
"clarity",
"flipOverall",
"howToRead",
"caveats"
],
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}